Abstract:The rapid growth of the hotel industry requires hotels to improve operational planning, one of which is by forecasting room reservations. Inaccurate forecasting may cause an imbalance between room availability and customer…
er demand. This study aims to compare the Weighted Moving Average and Single Exponential Smoothing algorithms in forecasting room reservations at Raz Hotel and Convention Medan using historical data from January 2025 to May 2026. The research method consisted of data collection, forecasting using both algorithms, and accuracy evaluation through Mean Absolute Deviation, Mean Squared Error, and Mean Absolute Percentage Error. The results indicate that the Single Exponential Smoothing algorithm achieved a Mean Absolute Percentage Error of 15.24%, which is lower than the 15.63% obtained by the Weighted Moving Average algorithm. Furthermore, the Single Exponential Smoothing algorithm predicted 835.90 room reservations for June 2026. Therefore, it can be concluded that the Single Exponential Smoothing algorithm provides better forecasting accuracy and is more suitable for predicting room reservations at Raz Hotel and Convention Medan.
Abstract:Graduation marks the completion of a certain level of schooling. This study aims to predict the graduation of students at SDN 016528 BP Mandoge based on their abilities. The goal of this research is to reduce the rate of…
student failure to graduate by making predictions based on examination scores collected by the institution. The method used in this study is Naive Bayes, a technique in Data Mining that utilizes probability and statistics to predict future outcomes based on previous data. This method was chosen due to its advantage in predicting graduation rates from concrete data, ensuring the results are reliable and applicable for future predictions. The dataset used in this study includes graduation data for SDN 016528 BP Mandoge students for the 2019/2020 academic year, comprising 171 students, with 120 students used for training data and 51 students for testing data, achieving a model accuracy of 98%.
Abstract:Public speaking is the activity of speaking in front of an audience with the aim of delivering information, providing explanations, entertaining, or influencing the listeners. It also involves conveying messages verbally…
in front of an audience, whether in the form of speeches, presentations, lectures, or discussions. Public speaking is a crucial skill in various aspects of life, ranging from education to the professional world. This ability not only helps in academic presentations but also impacts how a person communicates and influences others. At the high school level and equivalent, students begin preparing for the next stage in their education or entering the workforce. Many challenges arise for students when speaking in front of an audience in a formal setting and explaining their presentations. Students face difficulties due to a lack of self-confidence, nervousness, panic, and a lack of mastery over the material they will present. In addition to a lack of self-confidence, other challenges include limited vocabulary, low communication skills, fear of judgment from others, and insufficient preparation. Basic public speaking training at Al Ma'shum High School in Kisaran would be highly beneficial for students to boost their self-confidence, enhance their communication skills, sharpen their critical and logical thinking abilities, and equip them for entering the workforce. The basic public speaking training will involve methods such as self-introduction exercises, role-playing, speech structure practice, impromptu speaking, expression training, intonation and articulation exercises, as well as feedback and evaluation.
Abstract:Covid-19 is a serious health problem that occurs globally, including in Indonesia. Mathematical modeling is one way to see how the spread of the Covid-19 pandemic is developing. The model used in this study is SVEI1I2R and…
nd its stability will be seen. The article discusses the stability of fixed points using the Jacobian matrix and the Routh-Hurwitz criterion as well as the Castilo-Chaves and Song Theorems, reproduction numbers, and their numerical analysis. The results of the analysis show that the stability of fixed points is related to the basic reproduction number determined by the next-generation matrix, stability analysis in accordance with the theorem and the distribution of the population is shown in a numerical graph.
Abstract:The purpose of this research is to determine the effect of using the Group Investigation model on the ability to write book reviews at XIth Class of SMK Taman Siswa Suka Damai. The population in this study are all XIth class…
lass students, totaling 127 students. The sample in this research is XIth class Accounting which are taken using a simple random sampling technique totaling 22 students. The data collection technique uses a performance test in writing a book review. Based on the research results, at the pretest the average score obtained was 66.1 and at the posttest 90.31. The significant value obtained is greater than ttable, namely tcount > ttable, namely 80.7>1.68 and 80.7>2.41. This proves that Ho is rejected and Ha is accepted, namely that there is a significant influence from the use of the Group Investigation model on the ability to write book reviews in class.
Abstract:The aim of this study is to assess whether the application of the three-step interview method affects the ability to write observation report texts among 10th-grade students at Madrasah Aliyah Swasta Al-Washliyah Binjai…
Serbangan. This research is an experimental study using a posttest-only design. The population consists of three 10th-grade classes, with two classes selected as samples: X IPA 1 and X Agama, chosen randomly using simple random sampling. The X Agama class was taught using the three-step interview method, while the X IPA 1 class served as the control group with conventional teaching methods. After the completion of the instruction, the post-test results showed an average score of 87.5 for the experimental class and 61.29 for the control class. The t-test results revealed a Thitung value of 79.15, exceeding the Ttabel value of 2.00, which means the null hypothesis (H0) can be rejected and the alternative hypothesis (Ha) accepted. This indicates that the three-step interview method has a significant effect on the ability to write observation report texts among 10th-grade students at Madrasah Aliyah Swasta Al-Washliyah Binjai Serbangan.
Abstract:This study aims to analyze the impact of using the mind mapping method on the ability to write procedural texts by utilizing Canva media among 11th-grade students at Air Joman Private High School during the 2023/2024 academic…
demic year. This research employs a true experimental design with a posttest-only control group design, involving 124 students randomly selected to be placed in two classes: the control class and the experimental class. The results indicate that the experimental class, which implemented the mind mapping method with Canva media, had an average score of 81.84, higher than the control class, which only used Canva media without the mind mapping method, with an average score of 74.39. Statistical tests revealed that the mind mapping method had a significant impact on improving procedural text writing skills, with a to value of 106.42, far exceeding the critical t-value at the 5% significance level (2.01) and the 1% significance level (2.68). Therefore, the alternative hypothesis is accepted, demonstrating that the use of the mind mapping method along with Canva media is proven to be effective in enhancing students' ability to write procedural texts.
Abstract:Online learning uses the internet network during the learning process, making it easier for students to access material and facilitating interaction with lecturers and other students. The aim of this research is to understand…
stand the impact of online learning on the interest and learning outcomes of Basic Mathematics for Civil Engineering students. The population of this research is first semester Civil Engineering students T.A. 2021/2022 totaling 30 people. The methods used to understand the impact of online learning on the interests and learning outcomes of Basic Mathematics for Civil Engineering students are qualitative and quantitative methods. The r test results show that rcount > rtable or 0.9998 > 0.306. This means that online learning influences students' interest in learning Basic Mathematics in the Civil Engineering Study Program. The results of the t test show that tcount ≥ ttable is 4.01 ≥ 2.045 so that online learning also influences the Basic Mathematics learning outcomes of Civil Engineering Study Program students. Students' ability to answer test questions during online learning was 76.67%.
Abstract:Diagnostic assessment tests for students entering elementary school were conducted once, focusing solely on letter reading. However, teachers did not assess syllable, word, paragraph, or reading comprehension, leading to…
ongoing issues in early reading ability among students. This study aimed to describe the early reading ability of the first-grade students at SDN 014 Tarakan through diagnostic assessment in terms of five key aspects: reading letters, reading syllables, reading words, reading paragraphs, and comprehending information from reading. A qualitative descriptive approach was employed in this study. Data were collected through interviews, observations, and documentation. The findings revealed that in the letter reading aspect, 34 out of 55 students were fluent, while 21 were not. In the syllable reading aspect, 27 students were fluent, and 28 were not. In the word reading aspect, 21 students read fluently, while 34 did not. In the paragraph reading aspect, 15 students read fluently, and 40 struggled. In the comprehension aspect, 16 students could understand the content, whereas 39 had difficulties with comprehension. The study also identified several challenges faced by students with reading difficulties. These included poor memorization of letter shapes, frequent errors such as changing, omitting, or misplacing letters, difficulty with long words, limited vocabulary, and lack of concentration while reading.
Abstract:This study aims to analyse the strategy of the Merauke Regency Government in managing Wamanggu Market and to identify the factors influencing its implementation. The research employed a qualitative descriptive approach,…
with data collected through interviews, observations, and documentation. The informants included the Head of the Department of Industry, Trade, Cooperatives and Small and Medium Enterprises (SMEs) of Merauke Regency, the Head of the Trade Division, the Head of the Wamanggu Market Technical Implementation Unit (UPTD), the Chairperson of HIPPAM, market traders, and consumers. Data were analysed using data reduction, data presentation, and conclusion drawing techniques. The findings indicate that the management strategy of Wamanggu Market is implemented through four main aspects: trader registration, trader regulation and enforcement, market management evaluation, and the enforcement of trader discipline. However, the implementation of these strategies has not yet been fully effective. Trader registration continues to rely on outdated data, resulting in discrepancies between administrative records and actual field conditions. Regulatory measures have not been entirely successful, as some traders continue to operate outside the designated market area and kiosk allocation does not always comply with established zoning arrangements. Market management evaluations are conducted regularly; however, follow-up actions have not been sufficient to resolve existing problems significantly. Furthermore, the enforcement of trader discipline remains constrained by low levels of compliance among traders and the inconsistent application of regulations.The study also reveals that market management strategies are influenced by internal factors, including limitations in human resources, infrastructure, budget availability, and inter-agency coordination, as well as external factors such as regulatory frameworks, trader participation, environmental conditions, market dynamics, and consumer behaviour. Therefore, improvements in human resource capacity, stronger institutional coordination, enhanced infrastructure, and the development of adaptive management strategies are necessary to achieve more effective and sustainable management of Wamanggu Market.